[runtime] Fix Object.create(null) initialization order

[runtime] Fix Object.create(null) initialization order

A GC might cause the just created dictionary object to have an invalid backing
store, which breaks heap verification.

BUG=chromium:659088
Committed: https://crrev.com/f5d4f8f80f8ca18f1c207c9f0dbc2f478f398fdf
Cr-Commit-Position: refs/heads/master@{#40574}

[Camillo Bruni, 2016-10-25 15:33:26]

cbruni@chromium.org changed reviewers:
+ jkummerow@chromium.org

[Camillo Bruni, 2016-10-25 15:33:26]

PTAL

[Camillo Bruni, 2016-10-25 16:25:31]

The CQ bit was checked by cbruni@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-10-25 16:25:34]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-10-25 16:53:17]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-10-25 16:53:18]

Dry run: This issue passed the CQ dry run.

[Jakob Kummerow, 2016-10-25 19:41:37]

LGTM with nit.

https://codereview.chromium.org/2452653002/diff/1/src/runtime/runtime-object.cc
File src/runtime/runtime-object.cc (right):

https://codereview.chromium.org/2452653002/diff/1/src/runtime/runtime-object....
src/runtime/runtime-object.cc:253: // Allocate the actual dictionay properties
uppfront to avoid invalid object
nit: s/actual dictionay properties/properties dictionary/, s/uppfront/up front/

[Camillo Bruni, 2016-10-26 06:52:55]

The CQ bit was checked by cbruni@chromium.org

[Camillo Bruni, 2016-10-26 06:52:56]

The patchset sent to the CQ was uploaded after l-g-t-m from
jkummerow@chromium.org
Link to the patchset: https://codereview.chromium.org/2452653002/#ps20001
(title: "address nits")

[commit-bot: I haz the power, 2016-10-26 06:53:03]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-10-26 07:17:08]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-11-17 22:13:06]

Description was changed from

==========
[runtime] Fix Object.create(null) initialization order

A GC might cause the just created dictionary object to have an invalid backing
store, which breaks heap verification.

BUG=chromium:659088
==========

to

==========
[runtime] Fix Object.create(null) initialization order

A GC might cause the just created dictionary object to have an invalid backing
store, which breaks heap verification.

BUG=chromium:659088

Committed: https://crrev.com/f5d4f8f80f8ca18f1c207c9f0dbc2f478f398fdf
Cr-Commit-Position: refs/heads/master@{#40574}
==========

[commit-bot: I haz the power, 2016-11-17 22:13:07]

Patchset 2 (id:??) landed as
https://crrev.com/f5d4f8f80f8ca18f1c207c9f0dbc2f478f398fdf
Cr-Commit-Position: refs/heads/master@{#40574}